Q: What can we learn about the 15-year-old Jenny?
A. She and her cousins went back home at midnight.
B. She liked the traditional 4 a.m. Black Friday openings better.
C. She preferred midnight shopping to early morning shopping.
D. She and her cousins got up very early to buy discounted items.
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在支路电流法分析中,用基尔霍夫电流定律列节点电流方程时,若电路中有N个结点,应列写的结点电流方程数为 ()个。
A. N+1
B. N
C. N-1
D. 支路数
阻断胃壁细胞H+泵的抗消化性溃疡药是
A. 米索前列醇
B. 奥美拉唑
C. 丙谷胺
D. 丙胺太林
E. 西咪替丁
用于预防哮喘发作的具有抗过敏作用的平喘药是______。
受体拮抗药和受体既无亲和力也无内在活性
A. 对
B. 错